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It is possible to calculate eigenvalues, one for each of the four state variables (lean angle, lean rate, steer angle, and steer rate), from the linearized equations in order to analyze the normal modes and self-stability of a particular bike design. In the plot to the right, eigenvalues of one particular bicycle are calculated for forward ...
Most bikes have positive trail, though a few, such as the two-mass-skate bicycle and the Python Lowracer, have negative trail. [12] Trail is often cited as an important determinant of bicycle handling characteristics, [13] [14] and is sometimes listed in bicycle manufacturers' geometry data.
β° = Breakover angle; C = Underside of chassis; W = Wheel; G = Ground; M = Midpoint of wheelbase Example of a vehicle at a significant breakover angle.. Breakover angle or rampover angle is the maximum possible supplementary angle (usually expressed in degrees) that a vehicle, with at least one forward wheel and one rear wheel, can drive over without the apex of that angle touching any point ...
Ackermann geometry. The Ackermann steering geometry (also called Ackermann's steering trapezium) [1] is a geometric arrangement of linkages in the steering of a car or other vehicle designed to solve the problem of wheels on the inside and outside of a turn needing to trace out circles of different radii.
The motion ratio of a mechanism is the ratio of the displacement of the point of interest to that of another point.. The most common example is in a vehicle's suspension, where it is used to describe the displacement and forces in the springs and shock absorbers.
Two states, Oregon and Idaho, eschew MSF's curriculum in favor of their own. With over 1,500 locations in U.S., and over 120,000 annual students, MSF trains about 3% of the owners of 4,000,000 new motorcycles sold for highway use. [70] Motorcycle injuries and fatalities among U.S. military personnel have continually risen since the early 2000s ...
The rate of growth is retarded when an overload occurs in a loading sequence. These loads generate are plastic zone that may delay the rate of growth. Two notable equations for modelling the delays occurring while the crack grows through the overload region are: [16] The Wheeler model (1972)
The two main factors that impact drag are the frontal area of the vehicle and the drag coefficient. The drag coefficient is a unit-less value that denotes how much an object resists movement through a fluid such as water or air. A potential complication of altering a vehicle's aerodynamics is that it may cause the vehicle to get too much lift.